CN104426213A - Monitor system and method for stored battery - Google Patents

Monitor system and method for stored battery Download PDF

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Publication number
CN104426213A
CN104426213A CN201410437339.8A CN201410437339A CN104426213A CN 104426213 A CN104426213 A CN 104426213A CN 201410437339 A CN201410437339 A CN 201410437339A CN 104426213 A CN104426213 A CN 104426213A
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CN
China
Prior art keywords
subsystem
battery pack
computer
becm
control system
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Granted
Application number
CN201410437339.8A
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Chinese (zh)
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CN104426213B (en
Inventor
迈克尔·爱德华·洛夫特斯
本·A·塔巴托斯基·布什
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Ford Global Technologies LLC
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Ford Global Technologies LLC
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Publication of CN104426213A publication Critical patent/CN104426213A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q9/00Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/371Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2209/00Arrangements in telecontrol or telemetry systems
    • H04Q2209/10Arrangements in telecontrol or telemetry systems using a centralized architecture
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2209/00Arrangements in telecontrol or telemetry systems
    • H04Q2209/40Arrangements in telecontrol or telemetry systems using a wireless architecture
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

A monitor system for an inventoried battery includes at least one battery pack; at least one embedded monitor subsystem interfacing with the battery pack, the embedded monitor system adapted to acquire sensor data from the battery pack; and at least one archival data storage system interfacing with the embedded monitor subsystem, the archival data storage system adapted to archive the sensor data. A method of monitoring a stored battery is also disclosed.

Description

For supervisory control system and the method for storage battery
Technical field
Illustrative embodiment of the present invention relates in general to the battery pack for hybrid vehicle (HEV) and electric automobile (EV).More specifically, illustrative embodiment of the present invention relates to supervisory control system and method, in this supervisory control system and method, from reserve cell, obtains sensing data.
Summary of the invention
Illustrative embodiment of the present invention is totally for a kind of supervisory control system for storage battery.This supervisory control system comprises: at least one battery pack; At least one embedded monitoring subsystem, this subsystem is connected with battery pack, and this built-in monitor system is suitable for obtaining sensing data from battery pack; And at least one filing data stocking system, this stocking system is connected with embedded monitoring subsystem, and this file data stocking system is suitable for sensing data to file.
Further, illustrative embodiment of the present invention is totally for a kind of method monitoring reserve cell.From at least one battery pack, obtain sensing data during the illustrative embodiment of method of monitoring reserve cell is included in the deposit of battery pack and sensing data is filed.
Background technology
Sensing data from the battery pack in deposit is not collected and analyzes.The surrounding environment that reserve cell group can stand to a certain degree circulates with aging.From the angle of engineering, using the sensing data obtained from reserve cell group to as safeguard as battery pack and the battery unit of system of the such target of following battery pack engineering and the understanding of battery pack favourable.
Therefore, for monitor and obtain from the sensing data in reserve cell supervisory control system for some application for be desirable.
Accompanying drawing explanation
With reference now to accompanying drawing, by way of example illustrative embodiment of the present invention will be described, in accompanying drawing:
Fig. 1 is the block diagram of the supervisory control system illustrative embodiment for storage battery.
Fig. 2 is according to the block diagram for the exemplary embedded monitoring subsystem of supervisory control system illustrative embodiment of storage battery.
Fig. 3 is the flow chart of the supervisory control system illustrative embodiment for storage battery.
Embodiment
In fact following embodiment is only exemplary, the application in its object the embodiment of unrestricted description or the embodiment of description and purposes.Here word " exemplary " used or " illustrative " mean " as example, example or explanation ".Here any execution mode be described as " exemplary " or " illustrative " might not be interpreted as being the execution mode preferred or more favourable than other execution mode.Following all execution modes are can put into practice illustrative embodiments of the present invention for those skilled in the art, is not intended to limit the scope of claim.And illustrative embodiment described here is not exhaustive, and except described here and to fall into the embodiment in right or the embodiment except execution mode or execution mode be also feasible.In addition, there is not the intention of the constraint of the theory of any expression or the hint proposed in aforementioned technical field, background technology, summary of the invention or following embodiment.
First with reference to Fig. 1, for the supervisory control system of storage battery---hereinafter referred to as supervisory control system---illustrative embodiment totally represent with Reference numeral 100.Supervisory control system 100 can comprise at least one reserve tank 101.Reserve tank 101 can comprise at least one battery pack 102.In certain embodiments, battery pack 102 can be used as the source of electric power, such as but not limited to being used in hybrid vehicle (HEV) or electric automobile (EV).It is inner that BECM (energy content of battery control module) 107 can be arranged on battery pack 102.In reserve tank 101, at least one embedded monitoring subsystem 103 can be connected with BECM107.Embedded monitoring subsystem 103 can comprise emitter antenna 104, the object of this emitter antenna 104 wireless signal emission 106 for will be described below.
At least one filing sensing data stocking system 110 can communicate with embedded monitoring subsystem 103.Filing sensing data stocking system 110 can comprise the radio reception device 113 having receiver antenna 121, and this receiver antenna 121 is for receiving the wireless signal 106 launched by the emitter antenna 104 of embedded monitoring subsystem 103.Master reference data acquisition computer 112 can be connected with radio reception device 113.Filing sensor database 111 can be connected with master reference data acquisition computer 112.Correspondingly, in the running of the supervisory control system 100 that will be further described below, embedded monitoring subsystem 103 obtains sensing data during the deposit of battery pack 102 from the BECM 107 of battery pack 102.The emitter antenna 104 of embedded monitoring subsystem 103 passes through wireless signal 106 to radio reception device 113 transmission sensor data.Master reference data acquisition computer 112 obtains sensing data from radio reception device 113.Filing sensor database 111 is laid in the sensing data from master reference data acquisition computer 112 and is filed, and for data mining and analysis, this data mining and analysis can be used for such as but not limited to the cell stack designs purposes such with maintenance.The sensing data transmitted can comprise voltage or the health status of battery pack 102.
Following with reference to Fig. 2, the exemplary embedded monitoring subsystem 103 of supervisory control system 100 as shown in the figure.Embedded monitoring subsystem 103 can comprise subsystem computer 120, this subsystem computer 120 can comprise the single board computer of the wireless connecting function of the BECM 107 having CAN and be connected to battery pack 102, and these wireless connections connect such as but not limited to WiFi.Emitter antenna 104 can be connected with subsystem computer 120.BECM wakes up (power latching relay or charger), and connector 122 can be connected (Fig. 1) with subsystem computer 120 with the BECM 107 of battery pack 102.BECM CAN connector 123 can be connected with the CAN (controller zone network) of BECM 107 with subsystem computer 120.At least one subsystem battery 125 can be connected with subsystem computer 120.Subsystem battery 125 can be---such as but not limited to---12V battery, and subsystem battery 125 can adjust size so that the deposit phase providing electric power continuous to expect to BECM 107 and subsystem computer 120.BECM mains connection 124 can be connected with subsystem battery 125 with subsystem computer 120, and is connected with BECM 107.
In the exemplary application of supervisory control system 100, during the deposit of battery pack 102, the subsystem computer 120 of embedded monitoring subsystem 103 will wake the BECM 107 of connector 122 periodic wakeup battery pack 102 in the normal mode up by BECM.Subsystem computer 120 continues to be enough to allow BECM 107 initialization and a period of time obtaining sensing data from battery pack 102 by maintaining wake-up signal to BECM 107.When BECM 107 is waken up, subsystem computer 120 will monitor the CAN of BECM 107 by BECMCAN connector 123.Subsystem computer 120 can also be the result queries BECM 107 of the conventional autodiagnosis program of BECM on CAN.
By the CAN of BECM CAN connector 123, the BECM 107 subsystem computer 120 transmission sensor data to embedded monitoring subsystem 103, these data circulate to the surrounding environment of battery pack 102 and aging and BECM diagnostic data is relevant.Then, so subsystem computer 120 allows BECM 107 to close, thus retain the electric power of subsystem battery 125, the closedown of BECM 107 makes to wake invalidating signal realization up by relying on BECM to wake connector 122 up.Subsystem computer 120 transmits the sensor signal obtained to master reference data acquisition computer 112 by emitter antenna 104, wireless signal 106, receiver antenna 121 and radio reception device 113.Master reference data acquisition computer 112 by sensor signal stored in filing sensor database 111, can carry out data mining and analysis for suitable personnel.Such as but not limited to, these personnel can utilize sensing data to carry out the maintenance of existing battery pack 102 in real time, and/or for the engineering in battery pack 102 future and design.
In certain embodiments, the interval time of waking BECM 107 up can be 30-60 minute or longer.This interval can be packaging according to BECM 107 and embedded monitoring subsystem 103, deposit duration, battery capacity and electrical load are implemented to drive.In certain embodiments, this interval can based on algorithm, and this algorithm can reduce interval (obtaining data more frequent) when the analysis of obtained data starts to tend to exception.
Following with reference to Fig. 3, for the illustrative embodiment of the supervisory control system of storage battery flow process Figure 200 as shown in the figure.Method originates in frame 202.In frame 204, electric current is assigned to battery pack endlessly.In block 206, the BECM of battery pack keeps guard model.In frame 208, during battery reserve, from battery pack, obtain sensing data.In block 210, BECM powered-down is to retain electric power.In block 212, sensing data wirelessly transmits.In block 214, sensing data can be filed.Such as but not limited to, the sensing data of filing can be used for data mining and analysis, and this data mining and analysis can be used for the maintenance of existing battery pack 102, and/or for the Future Projects of battery pack 102 and design.
In certain embodiments, allow such as by utilizing internal timer (not shown) or periodically waking embedded monitoring subsystem 103 as selecting up by wireless awakening (WoWLAN), completing its function, and then get back to sleep pattern, will be desirable.Correspondingly, in flow process Figure 200 of Fig. 3, embedded monitoring subsystem 103 can be waken up first before frame 204, subsequently, and (after frame 212) powered-down after data are transferred to master reference data acquisition computer 112.WoWLAN will allow master reference data acquisition computer 112 Remote triggering data acquisition event.As selection, when using timer internal instead of use Fixed Time Interval, master reference data acquisition computer 112 can based on the next required interval of data analysis transmission recited above to embedded monitoring subsystem 103.
Although be described embodiments of the invention for specific exemplary embodiment, be understood that specific embodiment is illustrative object, not limit, other version will be expected equally to one skilled in the art.

Claims (8)

1. for a supervisory control system for storage battery, it is characterized in that, comprise at least one battery pack; The embedded monitoring subsystem that at least one is connected with battery pack, this built-in monitor system is suitable for obtaining sensing data from battery pack; And at least one filing data stocking system be connected with embedded monitoring subsystem, this filing data stocking system is suitable for sensing data to file.
2. supervisory control system according to claim 1, is characterized in that, embedded monitoring subsystem comprises the subsystem battery that subsystem computer is connected with subsystem computer with at least one.
3. supervisory control system according to claim 2, is characterized in that, comprises BECM further and wakes connector up, and this connector is connected with the subsystem computer of embedded monitoring subsystem and the BECM of battery pack.
4. supervisory control system according to claim 2, is characterized in that, comprises BECMCAN connector further, and this connector is connected with the subsystem computer of embedded monitoring subsystem and the BECM of battery pack.
5. supervisory control system according to claim 2, is characterized in that, comprises BECM mains connection further, and this connector is connected with the subsystem computer of embedded monitoring subsystem and the BECM of battery pack.
6. supervisory control system according to claim 1, is characterized in that, filing data stocking system comprises central data collecting computer, and this central data collecting computer is connected with embedded monitoring subsystem; And filing data storehouse, this filing data storehouse is connected with central data collecting computer.
7. supervisory control system according to claim 1, is characterized in that, embedded monitoring subsystem is suitable for filing data stocking system radio transmission transducing device data.
8. supervisory control system according to claim 7, is characterized in that, filing data stocking system comprises radio reception device, and this radio reception device is connected with embedded monitoring subsystem; Central data collecting computer, this central data collecting computer is connected with radio reception device; And filing data storehouse, this filing data storehouse is connected with central data collecting computer.
CN201410437339.8A 2013-08-29 2014-08-29 Monitoring system and method for storage battery Active CN104426213B (en)

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US14/013,803 2013-08-29
US14/013,803 US9285430B2 (en) 2013-08-29 2013-08-29 Monitor system and method for stored battery

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Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9551758B2 (en) 2012-12-27 2017-01-24 Duracell U.S. Operations, Inc. Remote sensing of remaining battery capacity using on-battery circuitry
US9478850B2 (en) 2013-05-23 2016-10-25 Duracell U.S. Operations, Inc. Omni-directional antenna for a cylindrical body
US9726763B2 (en) 2013-06-21 2017-08-08 Duracell U.S. Operations, Inc. Systems and methods for remotely determining a battery characteristic
US9882250B2 (en) 2014-05-30 2018-01-30 Duracell U.S. Operations, Inc. Indicator circuit decoupled from a ground plane
US10197630B2 (en) * 2015-04-10 2019-02-05 Ross Kanarek Wireless smart battery system
US10297875B2 (en) 2015-09-01 2019-05-21 Duracell U.S. Operations, Inc. Battery including an on-cell indicator
US10204511B2 (en) * 2016-04-01 2019-02-12 Caavo Inc Remote control device usage detection based on power consumption
US10650621B1 (en) 2016-09-13 2020-05-12 Iocurrents, Inc. Interfacing with a vehicular controller area network
US10151802B2 (en) 2016-11-01 2018-12-11 Duracell U.S. Operations, Inc. Reusable battery indicator with electrical lock and key
US10818979B2 (en) 2016-11-01 2020-10-27 Duracell U.S. Operations, Inc. Single sided reusable battery indicator
US10483634B2 (en) 2016-11-01 2019-11-19 Duracell U.S. Operations, Inc. Positive battery terminal antenna ground plane
US10608293B2 (en) 2016-11-01 2020-03-31 Duracell U.S. Operations, Inc. Dual sided reusable battery indicator
US11024891B2 (en) 2016-11-01 2021-06-01 Duracell U.S. Operations, Inc. Reusable battery indicator with lock and key mechanism
DE102016223251A1 (en) 2016-11-24 2018-05-24 Robert Bosch Gmbh System and method for storing a battery
WO2018148439A1 (en) 2017-02-10 2018-08-16 Caavo Inc Determining state signatures for consumer electronic devices coupled to an audio/video switch
DE102018210764A1 (en) * 2018-06-29 2019-09-05 Conti Temic Microelectronic Gmbh Battery Management System
US11383616B2 (en) 2020-05-01 2022-07-12 Nissan North America, Inc. Vehicle battery life tracking system
US11837754B2 (en) 2020-12-30 2023-12-05 Duracell U.S. Operations, Inc. Magnetic battery cell connection mechanism
US11735841B1 (en) 2022-09-02 2023-08-22 Ross Kanarek Mount plate for audiovisual devices
US11770012B1 (en) 2022-10-20 2023-09-26 Ross Kanarek Device, system, and method of charging a battery for audiovisual equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1782729A (en) * 2004-11-29 2006-06-07 三星Sdi株式会社 Apparatus and method for monitoring battery pack
CN1940585A (en) * 2005-09-28 2007-04-04 财团法人工业技术研究院 Battery module managing device for master-slave radio data secrete discrimination and tracting method
CN101034140A (en) * 2007-03-21 2007-09-12 毛广甫 Data comparison and control method of intelligent type battery bag
CN101267124A (en) * 2007-03-12 2008-09-17 索尼株式会社 Battery pack
CN102565719A (en) * 2012-02-21 2012-07-11 上海航天电源技术有限责任公司 System for wirelessly diagnosing fault of battery pack
CN102680900A (en) * 2011-03-14 2012-09-19 三星Sdi株式会社 Test device of battery pack and method of driving the same
CN102779401A (en) * 2012-08-22 2012-11-14 蒋宁 Wireless power supply control device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387334A (en) * 1981-06-05 1983-06-07 Rockwell International Corporation Battery monitor circuit
US5432429A (en) * 1990-10-23 1995-07-11 Benchmarq Microelectronics, Inc. System for charging/monitoring batteries for a microprocessor based system
US6377028B1 (en) * 1990-10-23 2002-04-23 Texas Instruments Incorporated System for charging monitoring batteries for a microprocessor based method
US5977750A (en) * 1998-04-20 1999-11-02 Lucent Technologies, Inc. Battery diagnostic method and apparatus
US6084523A (en) 1998-07-13 2000-07-04 The United States Of America As Represented By The Secretary Of The Army Non-intrusive battery status indicator and inventory system
US20050038614A1 (en) 2001-11-27 2005-02-17 Steve Botts Remote battery monitoring systems and sensors
US7612472B2 (en) * 2004-01-23 2009-11-03 American Power Conversion Corporation Method and apparatus for monitoring energy storage devices
TWI308450B (en) 2005-09-16 2009-04-01 Ind Tech Res Inst Wireless client/server battery management system with monitoring and identification abilities
US7741813B2 (en) 2006-12-15 2010-06-22 At&T Intellectual Property I, L. P. Method and system for managing battery inventory
JP4561921B2 (en) * 2008-04-04 2010-10-13 株式会社デンソー Voltage detection device and battery state control device
US10687150B2 (en) * 2010-11-23 2020-06-16 Audiotoniq, Inc. Battery life monitor system and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1782729A (en) * 2004-11-29 2006-06-07 三星Sdi株式会社 Apparatus and method for monitoring battery pack
CN1940585A (en) * 2005-09-28 2007-04-04 财团法人工业技术研究院 Battery module managing device for master-slave radio data secrete discrimination and tracting method
CN101267124A (en) * 2007-03-12 2008-09-17 索尼株式会社 Battery pack
CN101034140A (en) * 2007-03-21 2007-09-12 毛广甫 Data comparison and control method of intelligent type battery bag
CN102680900A (en) * 2011-03-14 2012-09-19 三星Sdi株式会社 Test device of battery pack and method of driving the same
CN102565719A (en) * 2012-02-21 2012-07-11 上海航天电源技术有限责任公司 System for wirelessly diagnosing fault of battery pack
CN102779401A (en) * 2012-08-22 2012-11-14 蒋宁 Wireless power supply control device

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DE102014216745A1 (en) 2015-03-05
US20150061603A1 (en) 2015-03-05
US9285430B2 (en) 2016-03-15

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